RU2264298C2 - Hand spreader for application of fluid correcting medium to surface of backing - Google Patents

Abstract

FIELD: stationary.

SUBSTANCE: according to first design version, device contains reservoir for fluid medium, applicator communicating with fluid medium communicating with fluid medium reservoir so that fluid medium, with device in operating condition, passes from reservoir to applicator, and intermediate turnable member installed on carrying axle. Applicator is made in form of turnable member flexible shifted backwards. Intermediate turnable member is designed to transfer fluid medium to applicator with possibility of displacement to provide random communication of fluid medium reservoir with applicator. According to second design version, device contains reservoir with correcting medium under pressure, turnable applicator communicating with reservoir to pass fluid medium, with device in operating condition, from reservoir to applicator for application to surface of backing. Applicator is installed for turning around carrying axle, and its front area has narrowing cross section.

EFFECT: improved convenience of application of liquid to surface.

24 cl, dwg

Description

The present invention relates to a manual dispenser for applying a fluid correction medium to the surface of a substrate. Typically, such a correction medium is a liquid or gel having dispersed particles. Alternatively, the correction medium may be a gas provided with particles or droplets (aerosol), or a free-flowing dry substance, such as a powder.

It is well known in the art to apply correction fluid with a pencil or brush. In accordance with this method, a small brush is dipped into a correction fluid located in a small container, and then a small brush is applied to the liquid, "painting" the corrected area.

However, the present invention does not apply to dispensers with a brush and in the form of a handle, which are proposed above. It relates to dispensers in which, during use of the dispenser, the correction medium is automatically supplied from the reservoir or spray can to the application element. Therefore, such dispensers are distinguished by the passage of the correction medium towards the application element while using the dispenser.

Pencil-type dispensers for correction fluids are well known in the art. For example, from US Pat. No. 4,658,820 A, an applicator device is known for applying liquid or granular dry matter to a surface. The device comprises a container with material and a surface applicator for applying the application material to the surface. Between the container with the material and the surface applicator there is a valve having a valve element designed to pass the application material to the surface applicator when the valve element is in the open position and to block the flow of application material to the surface applicator when the valve element is in the closed position. The surface applicator includes a distal end portion of the valve member cooperating with the hole of the applicator when, to deposit and spray the application material onto the surface, the distal end portion of the valve member is pressed against the surface, resulting in an annular opening for passage of the application material. Such an applicator device is suitable for applying liquids, for example, liquids for correcting writing, oils, paints and coatings, as well as solids and solids, such as adhesives, gels and powders.

From US Pat. No. 4,813,463 A, a spray can design with correction fluid is known that can be applied instantly. The device contains a screw cap, which provides semi-automatic delivery of the contents through the hole in the upper part of the cap during compression of the upper conical part of the spring-loaded control element.

From US Pat. No. 5,123,766 A, a handle for dispensing correction fluid is known, including a cylindrical body formed with a tapered front end, the front end having a spherical applicator or brush applicator. The cylindrical body has a screw-on end cap, while a piston is placed in the end cap, the piston is pressed inside the cylindrical body to apply pressure to the can of liquid placed inside the cylindrical body to direct such fluid through the brush or spherical element of the applicator.

From US Pat. No. 5,261,755 A, a dispenser with a fluid is known for applying correction fluid to a printed material, wherein the dispenser is formed as an elongated tubular body having valve means at one end and for holding the fluid closed at the opposite end. The tubular body at each end is substantially circular in cross section and has an expanded portion with a large cross section for squeezing material from the body when the valve is in the open position.

From US Pat. No. 5,499,881 A, a writing device with correction fluid is known.

From US patent No. 5516223 And known correction fluid, including a suspending agent, a binder, water and a substance that makes the material opaque.

From US patent No. 4511273 A, a dispenser with correction fluid is known having a retractable and fixed sealing tip.

From US patent No. 4917521 A a container is known having the shape of a pen with correction fluid intended for spreading. To turn the lid on the container, a manually-pressed lever is installed. The bevel on the inner surface of the cap slides in contact with the beveled surface of the wall of the spiral liner, so that rotation is achieved by moving the inner rod by means of the spiral liner at a distance from the liquid outlet at the tip end of the cap.

US Pat. No. 5,971,648 A discloses a pen for applying a color or correction fluid.

From US patent No. 5482393 A, a dispenser is known for applying corrective fluid to places of error in a letter. The dispensing device includes a valve swivel ball that controls the delivery of fluid, and to shut off the output of the correction fluid, the swivel ball is usually biased by a spring element by means of an elongated biasing element. To ensure the possibility of overlapping and dispensing correction fluid, the biasing element is made in the form of a cylindrical element, which is integrally formed at the end spaced from the pivot ball, thereby creating a stepped outward portion that comes into close contact with the biasing spring.

US Pat. No. 5,056,949 A discloses a device with a ball valve for dispensing correction fluid and comprising a body member configured to hold correction fluid and a sleeve located at one end thereof to supply fluid to the surface. The sleeve ends with a hole formed by an annular rim with a spherical ball of a larger diameter located in the hole. The ball is supported by the socket, while the ball and socket are pressed by a spring in the direction of the hole. A restrictive means is provided inside the rim of the hole to prevent the entire ball from escaping.

From US patent No. 5716151 And known tool for coating.

U.S. Patent No. 4,572,691 A discloses a pen-shaped device for applying correction fluid and comprising an elongated body, a soft can of thin flexible polymer film located in the cavity of the body and containing correction fluid, and an application tip assembly containing a rod attached to the body and the soft canister and having a through hole through which a correction fluid is dispensed when the application element located inside the through hole is separated from mortar on the rod with overcoming the spring resistance.

From US patent No. 4812071 A, a correction fluid pen is known for applying a correction fluid, wherein the correction fluid contains an opaque coloring material and a volatile solvent.

From US patent No. 4923317 A, a brushless applicator with a whitening correction fluid is known for use in applying whitening fluid without using a brush. A whitening liquid is a suspension comprising a significant portion of white or substantially white particles, for example titanium dioxide or other coloring particles. The applicator includes a wear-resistant porous tip and a regulator located between the tip and the reservoir. The regulator can be formed of foam material, and the tip can be made of durable porous plastic. The pore sizes in the tip and the regulator are large enough so that they are not clogged by particles contained in the whitening liquid. The regulator prevents the tip from dripping by adjusting the speed at which fluid exits the tank. The pore size near the reservoir may vary from the size of the pores and passages near the tip. In order to prevent drying of the liquid between use, the applicator can be equipped with an airtight cap. In alternative embodiments, the applicator may include a foam tip with an outer nylon mesh coating to increase wear resistance, and a pressure-controlled valve may be used to control the flow of the whitening slurry to the tip.

In view of the aforementioned prior art, it is an object of the present invention to further improve a manual dispensing device for applying a fluid correction medium to a substrate surface in a more user friendly manner.

This problem is solved by means of a manual dispensing device for applying a fluid correction medium to the surface of the substrate, when using which, unlike other similar to pen devices, the user can choose the width of the application of the dispensing device. This can be done by selecting the dimensions of the contact area of the application element and the surface of the substrate.

In particular, this problem is solved by the features of an independent claim. In the dependent claims, the basic idea of the invention is developed.

In accordance with the present invention, there is provided a manual dispenser for applying a correction fluid to a surface of a substrate. The correction medium placed in the canister of the dispenser will communicate with the application element, at least in the working state of the dispenser, in which the dispenser is pressed against the surface of the substrate, so that in the working condition of the dispenser, the correction medium can pass from the canister to the applicator element . The application element is designed so that the width of the application of the application element can be selected by the user by changing the force and / or by changing the direction under which / in which the application element is pressed against the surface of the substrate. By changing the force and / or direction / angle between the application element and the surface of the substrate, it is possible to choose the dimensions of the contact area between the application element and the surface of the substrate.

At least the tip of the application element can be elastically deformable, so that the width of at least the tip of the application element increases when the application element is pressed against the surface of the substrate.

At least the tip of the application element may be elastically retracted backward.

The correction medium may consist of an aerosol, liquid or gel having dispersed particles, or of a free-flowing solid. In particular, in the case of a liquid or gel, it may contain an opaque coating colorant. Further examples of a liquid or gel having dispersed particles are described in US Pat. No. 5,516,223 A.

A valve device may be provided by which the balloon is brought into communication with the application element.

The valve device comprises an elastic element, so that the valve device is in a closed state until there is no inwardly directed pressing force acting on the application element, and the valve device opens as soon as the inwardly directed pressing force exceeds a predetermined level.

The cross section of the front region of the application element may taper towards the tip of the application element.

The application element may be made of porous or permeable material.

The application element may have at least one channel parallel to the length direction of the element.

The application element may be a rotation element, for example a torus or a roller.

The application element may be supported by a transverse bearing axis.

The cross section of the outer region of the torus may have an asymmetrically pointed shape.

In this case, the application element may also be made of rigid material.

An intermediate pivoting member substantially in contact with the application member may be provided to move the correction medium to the application member.

The intermediate rotary element may be part of a biased element of the valve device.

The correction medium in the spray can be under pressure.

Additional advantages, features and objectives of the present invention will become apparent to a person skilled in the art from the following detailed description of embodiments with reference to the accompanying drawings, in which:

1 and 2 are various views of a first embodiment of the present invention;

3 and 4 are various views of a second embodiment of the present invention;

5 is a view of a third embodiment of the present invention; and

6 and 7 are various views of a fourth embodiment of the present invention.

With reference to FIGS. 1 and 2, a first embodiment of the invention will be explained. As shown in the drawings, the dispenser 1 comprises a housing 2 for a container or cartridge 3 for correction medium, connected, for example, by screw thread 23 to the main part 22, while the main part 22 contains an application mechanism for applying the correction medium contained in the can 3 on the surface of a substrate, such as paper. The housing 2 and the screw thread 23 form a cartridge 21.

When the dispenser 1 is not used, an airtight cap 4 may be worn or screwed onto the main part to prevent drying of the correction medium remaining on the applicator.

The correction medium may be an aerosol, i.e. a gas with solid particles or droplets. Alternatively, the correction medium may be a liquid or gel having dispersed particles. Alternatively, the correction medium may be a free-flowing dry substance, for example a powder. In order to further stimulate the passage of the correction medium from the canister 3 to the applicator, the pressure of the correction medium in the canister 3 can be increased.

In accordance with the embodiment of FIGS. 1 and 2, the correction medium can be communicated in the applicator can 3 using the dispenser 1, that is, when the applicator is pressed with a certain force against the surface of the substrate. The communication between the canister 3 and the applicator, which according to the first embodiment is an application roller 11, can be realized by means of a tapering passage 6, an additional passage 5 with a reduced diameter and a spring seat. A coil spring 7 is placed inside the spring seat 8. When the application roller 11 is pressed against the surface of the substrate, due to the displaceable bearing axis 19 of the application roller 11, the application roller 11 is slightly shifted back and biases the intermediate roller 9 against the biasing compression force of the spiral spring 8. The intermediate roller 9 having a tapering profile in cross section forms a valve device together with a tapered seat 18 having a diameter consistent with the cross section of the intermediate roller 9.

Therefore, when the intermediate roller 9 is shifted back against the action of the biasing compression force of the spring 8, the valve formed by the intermediate roller 9 and the conical seat 18 made inside the main part 22 is opened, and as a result, the correction medium can freely pass from the can 3 to the intermediate roller 9 by means of which it is applied to the outer periphery 20 of the application roller 11. It should be noted that the cross section of the outer periphery 20 of the application roller 11 is made tapering. As a result of this and, in addition, due to the fact that at least the peripheral part of the application roller 11 is made of elastic material, the contact area between the application element (application roller) 11 and the surface of the substrate can be changed by force and / or angle under which the dispenser 1 and, in particular, the application roller 11 are pressed against the surface of the substrate.

It should be noted that according to the prior art, spherical applicators made of a solid material, for example steel, are usually used, as a result of which the contact area between the ball and the surface of the substrate cannot be changed by changing the force and / or the angle of application.

According to the present invention, the application width of the dispenser 1 can be changed by changing the area of contact of the applicator tip with the surface of the substrate or by changing the application force (pressure) or the application angle. In the case where at least the tip of the applicator (which is the outer peripheral part in the case of a rotary applicator) is made of an elastically deformable material, the size of at least the tip of the applicator element increases when the applicator element is pressed against the surface of the substrate. In the case where the tip (or the peripheral part in the cross section) narrows, then by changing the angle of application, the pointed tip 33 or the beveled edges 34 can be brought into contact with the surface of the substrate. In the case where only the pointed tip 33 is brought into contact, the width of the application will be very small. In the case where one of the tapered edges 34 of the applicator is brought into contact with the surface of the substrate, the width of the application will be larger due to the increased contact area between the applicator and the surface of the substrate.

It should be noted that the intermediate roller 9 is provided with a corresponding recess 35 in contact with the narrowed peripheral part of the application roller 11.

Next, with reference to FIGS. 3 and 4, a second embodiment of the present invention will be explained. Compared to the first embodiment shown in FIGS. 1 and 2, in accordance with the second embodiment, the sole applicator roller 11 is replaced by an applicator conveyor 12 comprising a front roller 13, a rear roller 14 and a conveyor belt 15. The bearing axis 16 of the front roller 13 and the bearing axis 17 of the rear roller 14 are set in a predetermined position relative to each other, so that in the case when the front roller 13 is pressed against the surface of the substrate and therefore slightly shifted back (due to the fact that the bearing axis 16 may also slightly to be displaced), similarly, the bearing axis 17 and, therefore, the rear roller 14 of the application conveyor 12 will be displaced backwards and will actuate the valve device formed by the tapered seat 18 and the intermediate roller 9 together with its movable carrier axis 10. It should be noted that in this case, at least the outer periphery of the front roller 13 is also tapered or rounded, and the conveyor belt 15 is in close contact with the tapered or curved outer peripheral portion of the front roller 13.

Next, a third embodiment of the present invention will be explained with reference to FIG. Based on the first embodiment shown in FIGS. 1 and 2, it can be seen that in the third embodiment shown in FIG. 5, there is no valve device and an intermediate roller 9. The cross section 31 of the outer region of the toroidal applicator has an asymmetric pointed shape known , for example, from marker pens. In this case, the entire toroidal applicator 30 can be made, for example, of inelastic and rigid material. In accordance with this embodiment, the width of the application changes only when the application angle changes, that is, when the surface of the substrate is selectively contacted only with an asymmetrical pointed tip 33 or only with a beveled edge 34 of the toroidal applicator 30.

Although not shown in FIG. 5, but in the case of the inelastic toroidal applicator 30 of FIG. 5, a valve device and / or an intermediate rotary element may also be provided.

It should be noted that it is common for the embodiments shown in FIGS. 1-5 that the applicator is a pivot member with a displaceable bearing axis 16, 19 or with a fixed bearing axis 36 (in the third embodiment of FIG. 5).

According to a fourth embodiment shown in FIGS. 6 and 7, the applicator is a fixed element 37 made, for example, of fur. The rotary applicator 37 is made in the form of a porous applicator 27 or in the form of a permeable applicator 24 (Fig.6). In the case of the permeable applicator element 24 shown in FIG. 6, longitudinal channels 25 oriented in the length direction of the applicator 24 may be provided. It should be noted that the permeable channel applicator 24 is also provided with a tapering tip 26.

It should be noted that in the embodiments of FIGS. 6 and 7, a valve device may also be provided, for example similar to that shown in FIGS. 1-4.

Fig.7 shows a slight change in the embodiment of Fig.6, namely, that the permeable channel applicator 24 is replaced by a porous applicator 27. It should be noted that the pore size is set so that the pores are not clogged with a correction medium and especially any solid particles in the correction the medium housed in the can 3. The rear end of the porous applicator 27 is provided with a valve member 28 cooperating with a tapered seat 29 to form a valve device. When the porous applicator 27 is pressed against the surface of the substrate, the applicator moves slightly backward to open the valve device formed by the conical seat 29 and the valve element 28 attached to the applicator 27, and in addition, due to the elastic properties of the porous applicator 27, the width of the tapering tip 26 will increase by depending on the pressure acting on the dispenser 1 and, therefore, on the applicator 27.

List of conventions:

1 - distributing device

2 - case

3 - spray can for corrective particles dispersed in a fluid

4 - cap

5 - passage

6 - tapering passage

7 - spring

8 - spring socket

9 - an intermediate roller

10 - bearing axis of the element 9 (displaced with overcoming the resistance of the spring 7)

11 - application roller

12 - application conveyor

14 - front roller element 12

15 - conveyor belt

16 - bearing axis of the element 13

17 - bearing axis of the element 14

18 - conical seat

19 - bearing axis of the element 11

20 - narrowing the outer surface of the element 11

21 - screw cartridge

22 - the main part

23 - screw thread

24 - permeable application element

25 - longitudinal channels

26 - tapering tip of the element 24

27 - porous applicator

28 - valve

29 - conical seat

30 - inelastic toroidal applicator

31 - pointed periphery of the element 30

32 - seal

33 - pointed tip

34 - beveled edge

35 - consistent recess element 9

36 - fixed bearing axis of the element 30

37 - fixed applicator

Claims (24)

1. A dispensing device for applying a fluid to a surface of a substrate, comprising: a reservoir for a fluid; an application element in fluid communication with the reservoir, so that in working condition the fluid passes from the reservoir to the application element, wherein the application element is made in the form of a rotatable and elastically retractable element; an intermediate rotary element mounted on the carrier axis and configured to transfer fluid to the application element, while the intermediate rotary element is biased to selectively bring the reservoir into fluid communication with the application element. 2. The device according to claim 1, in which the application element is designed so that the width of the application of the application element is selected by changing the force and / or direction under which the application element is pressed against the surface of the substrate. 3. The device according to claim 2, in which the application element has a tip that is made elastically deformable, so that the width of at least the tip increases when the application element is pressed against the surface of the substrate. 4. The device according to claim 1, in which the fluid contains an aerosol of a liquid or gel having dispersed particles, or granular dry matter. 5. The device according to claim 1, containing a valve device configured to selectively bring the reservoir into fluid communication with the application element, the intermediate rotary element being part of the displaceable element of the valve device. 6. The device according to claim 5, in which the valve device contains an elastic element, so that the valve device is in a closed state while there is no inwardly directed pressing force acting on the application element and opens as soon as the inwardly directed pressing force exceeds a predetermined level. 7. The device according to claim 1, in which the cross section of the front region of the application element narrows toward the tip of the application element. 8. The device according to claim 1, in which the application element is made of a porous or permeable material. 9. The device according to claim 1, in which the application element has the shape of a torus. 10. The device according to claim 1, in which the application element is supported by a transverse bearing axis. 11. The device according to claim 1, in which the cross section of the outer region of the torus has an asymmetrically pointed shape. 12. The device according to claim 11, in which the application element is made of hard material. 13. The device according to claim 1, containing a correction medium in the reservoir under pressure. 14. The device according to claim 1, in which the intermediate rotary element is located essentially in contact with the application element for transferring the correction medium to the application element. 15. A dispensing device for applying a fluid to a surface of a substrate, comprising: a reservoir with a correction medium under pressure; a rotary application element in fluid communication with the reservoir, so that in the operating state of the device, the fluid passes from the reservoir to the application element for application to the surface of the substrate, while the application element is mounted to rotate around the bearing axis and its front region has a tapering cross section . 16. The device according to clause 15, in which the application element has a tip that is made elastically deformable, so that the width of at least the tip increases when the application element is pressed against the surface of the substrate. 17. The device according to clause 15, in which the fluid contains an aerosol of a liquid or gel having dispersed particles, or granular dry matter. 18. The device according to clause 15, comprising a valve device configured to selectively bring the reservoir into communication with the application element in the current medium. 19. The device according to p, in which the valve device contains an elastic element, so that the valve device is in a closed state while there is no inwardly directed pressing force acting on the application element, and opens as soon as the inwardly directed pressing force exceeds a predetermined level. 20. The device according to clause 15, in which the application element is made of porous or permeable material. 21. The device according to clause 15, in which the application element has the shape of a torus. 22. The device according to clause 15, in which the bearing axis is a transverse bearing axis. 23. The device according to clause 15, in which the cross section of the outer region of the torus has an asymmetrically pointed shape. 24. The device according to clause 15, in which the application element is made of hard material.

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